<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title> jQuery 확장집합 </title>
<script src="jquery-1.7.2.min.js"></script>
<script>
$( function() { 
 
 	 var arr = $('div.mark');
	 console.log(  arr );
	  
});

</script>	
<style>

 div{ width:100px; height:100px; background:#03F;}
  
</style>
</head>

<body>

<div class="mark"></div>
<div class="star"></div>
<div class="mark"></div>
<div id="car"></div>

</body>
</html>
